I don't think Zoe had a discipline problem. I couldn't find a website for Matthews Alternative High School, but it's located at 417 No. Akron Ave, as is the New Directions Early Learning Center. ELCs "care for children (ages birth to 5 years old) of teen parents."
http://www.elclubbock.org/wherewereat.html
They don't just baby-sit, they give the kids pre-K education, as well as breakfast, lunch & snacks.
Matthews has only 175 teenagers total, grades 9-12, which gives a student to teacher ratio of 9 to 1. That's a better ratio than most private schools.
http://www.trulia.com/schools/TX-Lubbock/Matthews_Alternative_High_School/